- A female house mouse can give birth to up to a dozen babies every three weeks. Imagine having as many as 150 babies a year!
- A mouse produces between 40 to 100 droppings per day, while a rat produces between 20 to 50 droppings a day.
- Rats can squeeze through a space as small as a half dollar.
- Mice can fit through an opening the size of a nickel.